AgentMail — Free 3 inboxes / 3,000 emails/mo public / non-affiliate
Sign up for AgentMail Free plan. Do not invent promo codes. Respect daily/monthly send caps.
AgentMail — Startup program 3 mo Startup tier free (apply) public / non-affiliate apply-not-code
Apply at AgentMail /startups. Eligibility (vendor page): early-stage AI-agent builders; typically $500K–$10M raised; never previously a customer. No public promo code. Wait for approval email.
Open offer / signup · apply-not-code
Postmark — Free Developer 100 emails/mo (no card) public / non-affiliate
Sign up for Postmark Free Developer plan. Use for transactional agent mail only (not cold spam). 100 emails/mo never expires per vendor FAQ.
Resend — Free 3,000 transactional emails/mo public / non-affiliate
Sign up at Resend Free. Verify domain/SPF. Transactional and user-requested only; no cold spam.
Botdog — AI-powered LinkedIn outreach automation for sales teams (affiliate) New affiliate
Updated Oct 24, 2026
Automate LinkedIn connection invites and follow-up sequences via Botdog's redeem_url. Respect LinkedIn's User Agreement/ToS and usage limits (automation can risk account restrictions), and comply with CAN-SPAM, GDPR, and other anti-spam laws: honest identity, relevant personalized messages, honor opt-outs promptly, no scraped or purchased lists without a lawful basis.
ClearBounce — email verification API (affiliate) New affiliate
Updated Oct 23, 2026
Sign up via the redeem_url for ClearBounce email verification.
DMARCLY — DMARC, SPF and DKIM monitoring for email deliverability (affiliate) New affiliate
Updated Oct 25, 2026
Set up DMARC/SPF/DKIM monitoring via DMARCLY's redeem_url. Authentication improves deliverability but is not a license to spam: comply with CAN-SPAM, GDPR, and other anti-spam laws (honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis).
EmailListVerify — email list verification API (affiliate) New affiliate
Updated Oct 23, 2026
Sign up via the redeem_url for EmailListVerify email list verification.
EmailOctopus — email marketing newsletters, automations and landing pages (affiliate) New affiliate
Updated Oct 25, 2026
Send newsletters and automated email campaigns via EmailOctopus using the redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: send only to opted-in subscribers, honest sender identity and subject lines, a physical address, working unsubscribe honored promptly, no purchased or scraped lists.
Folderly — email deliverability, inbox placement tests and spam monitoring (affiliate) New affiliate
Updated Oct 25, 2026
Improve deliverability and test inbox placement via Folderly's redeem_url. Deliverability tooling is not a license to spam: comply with CAN-SPAM, GDPR, and other anti-spam laws (honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis).
FullEnrich — waterfall contact enrichment (email + phone finder) (affiliate) New affiliate
Updated Oct 24, 2026
Find verified work emails and mobile numbers via FullEnrich's waterfall enrichment API or MCP server using the redeem_url (charged only when data is found). Respect privacy and anti-spam law.
GetSales — multichannel LinkedIn + email outreach automation with API & MCP (affiliate) New affiliate
Updated Oct 24, 2026
Run multichannel LinkedIn + email outreach (or drive it via API/MCP) through GetSales' redeem_url. Affiliate dashboard lists code AFF50CN (50% discount) — verify at checkout; do not promise it. Respect LinkedIn's User Agreement/ToS and usage limits (automation can risk account restrictions), and comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, physical address in email, honor opt-outs promptly, no scraped or purchased lists without a lawful basis.
Heyo Email — cold email sending with unlimited accounts, warmup and unified inbox (affiliate) New affiliate
Updated Oct 24, 2026
Run cold-email sequences with unlimited sending accounts and automatic warmup via Heyo Email's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis.
InboxKit — Google Workspace & Microsoft 365 mailbox infrastructure for cold email, with API & MCP (affiliate) New affiliate
Updated Oct 25, 2026
Provision Google Workspace / Microsoft 365 sending mailboxes for outreach (UI, REST API or MCP) via InboxKit's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis; follow Google/Microsoft sending policies.
Klenty — multichannel sales engagement, cold email and conversation intelligence (affiliate) New affiliate
Updated Oct 25, 2026
Run multichannel sales cadences (email, calls, LinkedIn tasks, SMS) via Klenty's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis; follow TCPA/do-not-call rules for calls and SMS. Respect LinkedIn's User Agreement/ToS and usage limits for any LinkedIn steps.
LeadMagic — B2B enrichment and email finder API (affiliate) New affiliate
Updated Oct 24, 2026
Find and verify B2B work emails, mobiles, and company data via LeadMagic's REST API, CLI, or hosted MCP using the redeem_url (pay only for valid results). Respect privacy and anti-spam law.
MailerLite — email marketing, automations and API/MCP sending (affiliate) New affiliate
Updated Oct 25, 2026
Run email campaigns, automations and signup forms, or send via MailerLite's API/MCP (paid plans), through the redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: send only to opted-in or lawfully obtained subscribers, honest sender identity and subject lines, physical address in marketing email, working unsubscribe honored promptly, no purchased or scraped lists.
mailfloss — automated email list verification and cleaning (affiliate) New affiliate
Updated Oct 25, 2026
Verify and auto-clean email lists by connecting an email platform to mailfloss through the redeem_url. Verification is list hygiene, not permission: comply with CAN-SPAM, GDPR, and other anti-spam laws — email only opted-in or lawfully obtained contacts, honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists.
MailKite — transactional email API, inbound webhooks and MCP agent inboxes (affiliate) New affiliate
Updated Oct 24, 2026
Send transactional email, receive inbound mail as webhooks, or give an agent its own inbox via MailKite's MCP server through the redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: send only to opted-in or lawfully obtained recipients, honest sender identity and subject lines, working unsubscribe for non-transactional mail, no purchased lists or bulk cold blasting.
MailReach — email warmup and spam/deliverability testing (affiliate) New affiliate
Updated Oct 25, 2026
Warm up sending mailboxes and run spam/placement tests via MailReach's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: warmup does not make unsolicited bulk email lawful — honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis.
MailVeri — email verification API, bulk list cleaning and native MCP server (affiliate) New affiliate
Updated Oct 25, 2026
Verify email addresses or clean lists via MailVeri's API, MCP server or bulk upload using the redeem_url. Verification is not a license to spam: comply with CAN-SPAM, GDPR, and other anti-spam laws (honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis). Only verify addresses you have a lawful basis to process.
Postmark — transactional email API (affiliate) affiliate
Sign up via the redeem_url for Postmark transactional email. Prefer Free Developer (100 emails/mo) first when volume is low; paid plans via link when scaling.
Premium Inboxes — done-for-you cold email inbox infrastructure (affiliate) New affiliate
Updated Oct 25, 2026
Provision cold-email sending inboxes via Premium Inboxes' redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis; respect Google Workspace and Microsoft 365 acceptable-use policies and sending limits.
Prospeo — email finder and B2B enrichment API (affiliate) New affiliate
Updated Oct 24, 2026
Find verified work emails and mobile numbers and enrich B2B leads via Prospeo's API, MCP server, or app using the redeem_url (referred users get 20% free credits on first purchase). Respect privacy and anti-spam law.
ReachInbox — AI cold-email automation and outbound inbox platform (affiliate) New affiliate
Updated Oct 24, 2026
Run cold-email campaigns with AI warm-up, personalization, and reply handling via ReachInbox's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis.
Relay (burner mailboxes) — cold outreach mailboxes (affiliate) New affiliate
Updated Oct 24, 2026
Provision low-cost cold-outreach mailboxes on your own domains via Relay's redeem_url (userelay.app; not relay.app). Follow anti-spam law and sender policies.
Salesforge (+ Mailforge) — cold-email infrastructure and AI SDR suite (affiliate) New affiliate
Updated Oct 24, 2026
Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis.
Sealch — email verification with catch-all detection, CSV and API (affiliate) New affiliate
Updated Oct 25, 2026
Verify email addresses or clean lists via Sealch's CSV upload or API using the redeem_url. Verification is not a license to spam: comply with CAN-SPAM, GDPR, and other anti-spam laws (honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis). Only verify addresses you have a lawful basis to process.
SendPulse — SMTP/transactional email API plus email, SMS and chatbot marketing automation (affiliate) New affiliate
Updated Oct 24, 2026
Send transactional email via SendPulse's SMTP relay or API (and email/SMS campaigns) through the redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: send only to opted-in or lawfully obtained recipients, honest sender identity and subject lines, physical address in marketing email, working unsubscribe honored promptly, no purchased lists.
SmartReach — cold email outreach and multichannel sales engagement (affiliate) New affiliate
Updated Oct 25, 2026
Run cold email campaigns and multichannel sales sequences via SmartReach's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis; follow TCPA/do-not-call rules for calls. Respect LinkedIn's User Agreement/ToS and usage limits for any LinkedIn steps or automation.
SMTP2GO — transactional email (affiliate) affiliate
Sign up via the redeem_url for SMTP2GO.
Snov.io — email finder, verifier & outreach (affiliate) New affiliate
Updated Oct 23, 2026
Sign up via the redeem_url for Snov.io email finder, verification, and outreach.
UpLead — B2B contact data, email finder and verification (affiliate) New affiliate
Updated Oct 25, 2026
Find and verify B2B contact emails or enrich company/contact records via UpLead's app or API through the redeem_url. Data privacy: process personal data only with a lawful basis (GDPR legitimate interest assessment, CCPA notices), honor deletion/opt-out requests, keep exported data secure, and don't resell or publish it. Comply with CAN-SPAM, GDPR, and other anti-spam laws when emailing contacts: honest sender identity and subject lines, a physical address, working opt-out honored promptly.
Zapmail — Google & Microsoft inbox infrastructure for cold email (affiliate) New affiliate
Updated Oct 24, 2026
Provision Google/Microsoft 365 sending mailboxes with automated DNS and OAuth hookup to your outreach tool via Zapmail's redeem_url. Comply with CAN-SPAM, GDPR, and other anti-spam laws: honest sender identity and subject lines, a physical address, working opt-out honored promptly, no purchased or scraped lists without a lawful basis.